Lay structure for power looms



July 26, 1927. I 1,636,717

C. SENN LAY STRUCTURE FOR POWER LOOMS Filed Aug. 12. 1925 .v I ,l 1 I 5 9' 4 aw 6 i atented July 26, 1927.

UNITED STATES CASPAR SENN, OF RUTI, SWITZERLAND,

FOBMERLY CASPAR HONEGGER, OF

ASSIGNOR TO MAS HINENFAB IK Burr RUTI, SWITZERLAND,

LAY STRUCTURE FOR TOWER LOOMS.

Application filed August 12, 1925, Serial No.

Power looms working with a single shuttle as hitherto proposed are provided w th a lay or batten consisting of one part and forming shuttle race without repositioning the reed: and moreover the conversion into a single or double sided changershuttle loom can be effected without replacement of the lay by another. According to the invention this object is attained by arranging that each supporting arm of the lay exchangeably carries an end portion whereby the loom can be converted in a short time from an ordinary picking, to a single or double sided pick-at-will or change-shuttle, loom, and that on a rail connecting the lay supporting arms with one another the said portion of the lay forming the shuttle race is removable for fitting the race or replacement of the fabric on the shuttle race and adjustable for "the purpose of levelling-in the said race.

The invention is illustrated by way of example in the accompanying drawing in which,

Fig. 1 is an elevation and Fig. 2 an enlarged section on the line m-w in Fig. 1 of the loom used in the ordinary manner, that is as a loom working with a single shuttle.

Fig. 3 is an elevation of the loom in use as a change-shuttle or pick-at-will loom.

The numeral 1 designates the frame of the loom, in which the shaft 3 carrying both the lay supporting arms 2 is turnably mounted. The arms 2 are connected with each other to form a rigid whole by means of a rail 1 lit-ted and screwed thereto.

The lay is in three parts, consisting of the separate end portions 5 and 6 and the mid portion independent therefrom, the so-called lay path or shuttle race 7. The end portions 5 and 6 are themselves made fast to the supporting arms 2 and are arranged for the reception of a single weaving shuttle 8. The

49,819, and in Switzerland August 23, 1924.

attachment and removal of the end portions is quickly and easily effected.

Fig. 3 illustrates the same loom altered to a change-shuttle or pick-at-Will loom, which alteration only necessitates replacement of the end portion 5 by a frame 20 carrying the shuttle boxes 19 containing shuttles 31, 32, 83, 34, 35, and 86, and the connection of the box support 21 with the known changing device.

All other parts of the lay are not affected by such an alteration. The individual portions of the lay are not of great length and are therefore subject to little tion. The mid-portion or the shuttle race 7 is likewise independent of the end portions 5, 6 and 20, and is fastened to the rail 4 by means of the angle 9. Each angle 9 at the edge of the upright side thereof has a vertical slot 10 in which the screw bolt 11 passing through the mid-portion 7 is adjustable for the attachment of the portion 7 to the angle 9. In this manner the mid-portion 7 can be conveniently positioned for levelling in the shuttle race and if necessary, for ex ample, can be quickly and easily removed for the fitting of the shuttle-race or replace-- ment of the fabric on'the said race.

The reed frame 12, which is pivotally secured to thesupporting arms 2 and to which the reed bars 13 and 14 holding the reed 15 are fixed, is pressed by means of the springs 16 against the screw bolts 18 which are screwed into the angles 9 and pass freely through the bridge 17 of the T-rail 4. The adjustment of the reed 15 towards the end portions 5 and 6 can be effected by the screw bolts 18. The mid-portion 7 can also be readily removed without displacing the reed 15. By this invention .the loom is endowed with greater usefulness, which enhances its practical value, and is considerably simplified in its construction.

hat I claim is:

1. In a power loom. an oscillating shaft, a shuttle race, a rail, a supporting arm secured to each end of said rail and to the oscillating shaft, an angle bar secured to said rail, said bar being provided with vertical slots, and means adjustable in said slots for securing said shuttle race to said bar.

2. In a power loom, an oscillating shaft, a

or no distorshuttle race, a rail, a supporting arm secured to each end of said mil and to the oscillating shaft and, an angle bar secured to said rail, said bar being provided with vertical slots, means adjnstable in said slots for securing said shuttle race to said bar, a reed frame pivotally mounted on said supporting arms and carrying 'a reed, and stop bolts secured in said angle bar to adjust the position of the reed relative to the end por- :tions of the lay. p

In a power loom having amovable reedframe, in combination, a lay comprising two end portions and an independent exchangeable mid-portion, supporting arms for said .lay, said mid-portion forming a shuttle race and adapted to be adjusted Vertically rela- I tive to said. arms, a rail connecting said arms, a pair of angle members secured to said rail, means on one of the flanges of each angle member for adjusting said reed frame horizo-ntarllywv it'l-i respect to said rail, the other flange of each angle member being provided with a slot, means in said slot for securing said mid-portion to said members, said means being Vertically adjustable, means secured to said arms for supporting shuttles boxes. I

In testimony whereof I have afiixed my signature.

CASPAR SENN. 

